No: Dosages of up to 200 mg have been used without significant side effects. Daily recommonded allowance is 2.5 mg ( 2500 mcg). If you are deficient in a vitamin, it would be understandable that the dose would higher than the DRA.
Answered 2/17/2020
3.9k views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question